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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 951 · 40 questions
TalentJR

The fast method (Count the places): Forget the points and multiply the whole numbers: 2.5 × 1.4 → 25 × 14 = 350. Count the decimal places in both numbers: 1 + 1 = 2. Put the point that many places from the right: 3.50 — then drop the 0 at the end: 3.5.

NameDateTime takenScore ___ / 40
  1. 1.0.49 × 3.8 =
  2. 2.0.45 × 3.2 =
  3. 3.0.58 × 1.1 =
  4. 4.0.97 × 0.9 =
  5. 5.4.1 × 0.34 =
  6. 6.0.88 × 2.4 =
  7. 7.6.8 × 0.4 =
  8. 8.1.8 × 0.2 =
  9. 9.6.3 × 2.1 =
  10. 10.1.2 × 0.16 =
  11. 11.0.21 × 1.1 =
  12. 12.0.26 × 0.2 =
  13. 13.2.7 × 2.1 =
  14. 14.0.06 × 0.5 =
  15. 15.6.1 × 0.38 =
  16. 16.2.6 × 2.3 =
  17. 17.0.44 × 3.4 =
  18. 18.0.11 × 0.3 =
  19. 19.5.9 × 0.12 =
  20. 20.1.1 × 0.16 =
  21. 21.0.09 × 2.2 =
  22. 22.8.9 × 0.26 =
  23. 23.0.76 × 3.4 =
  24. 24.4.2 × 0.23 =
  25. 25.0.93 × 0.4 =
  26. 26.6.5 × 2.6 =
  27. 27.2.1 × 0.32 =
  28. 28.0.8 × 0.38 =
  29. 29.0.61 × 3.5 =
  30. 30.0.32 × 1.5 =
  31. 31.1.2 × 0.32 =
  32. 32.7.9 × 0.28 =
  33. 33.0.94 × 0.8 =
  34. 34.9.2 × 0.13 =
  35. 35.4.5 × 0.28 =
  36. 36.0.23 × 0.5 =
  37. 37.0.02 × 0.9 =
  38. 38.7.1 × 0.18 =
  39. 39.0.02 × 0.6 =
  40. 40.0.71 × 3.7 =

Answer key

  1. 1.862
  2. 1.44
  3. 0.638
  4. 0.873
  5. 1.394
  6. 2.112
  7. 2.72
  8. 0.36
  9. 13.23
  10. 0.192
  11. 0.231
  12. 0.052
  13. 5.67
  14. 0.03
  15. 2.318
  16. 5.98
  17. 1.496
  18. 0.033
  19. 0.708
  20. 0.176
  21. 0.198
  22. 2.314
  23. 2.584
  24. 0.966
  25. 0.372
  26. 16.9
  27. 0.672
  28. 0.304
  29. 2.135
  30. 0.48
  31. 0.384
  32. 2.212
  33. 0.752
  34. 1.196
  35. 1.26
  36. 0.115
  37. 0.018
  38. 1.278
  39. 0.012
  40. 2.627

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